Thames & Kosmos Science or Magic? handleiding

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Thames & Kosmos

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Handleiding

Unblowable straw

An audience member cannot blow bubbles

through two straws at the same time.

YOU WILL NEED

› 2 Straws, 2 cups

› Pitcher of water

PREPARATION

Fill both cups with water. The level in one

should be about 2 centimeters lower than the

other. Place a straw in each of the cups.

PERFORMANCE

TRICK 4

I need a

volunteer.

Yes, you!

Can you

blow bubbles

into this

glass of

water? Sure,

but try it

anyway.

Let the audience member blow

through each of the straws in turn.

That wasn’t too hard.

But now I’m going to put a

spell on the straws.

Hocus pocus,

stopin-flowcus!

Let one straw

be closed!

Now have your audience member blow through both straws at the

same time. Make sure that both straws are immersed as deep as

possible in the water and that the audience member doesn’t blow

too hard. Bubbles will only appear in one of the cups!

Indeed: One of

the straws is

closed!

WOW!!!

WOAH!!!

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